Home / 64,905.20-97,346.76-18,147.20

Finding the Fourth Proportional to 64,905.20, 97,346.76 and 18,147.20

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Solution

The fourth proportional to 64,905.20, 97,346.76 and 18,147.20 is: 27,217.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,905.20 : 97,346.76 = 18,147.20 : x
  2. Step 2: Convert to fraction form
    64,905.20/97,346.76 = 18,147.20/x
  3. Step 3: Cross multiply
    64,905.20x = 97,346.76 × 18,147.20
  4. Step 4: Simplify right side
    64,905.20x = 1,766,571,123.07
  5. Step 5: Solve for x
    x = 1,766,571,123.07/64,905.20
  6. Step 6: Final answer
    x = 27,217.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.